Question

Define cathode and anode.

Name: Problem 2, Chapter 19: General Chemistry
Uploaded: 2021-07-13T11:51:08-08:00
Duration: 2 min 1 s
Channel: Shahina -
Description: Define cathode and anode.

   Define cathode and anode.

General Chemistry

Darrell Ebbing,… 11th Edition

Chapter 19, Problem 2

Instant Answer

Solved by Expert Shahina -

07/13/2021

Step 1

An anode is a type of electrode where the process of oxidation takes place. In other words, it is the electrode that loses electrons during the electrochemical reaction. Show more…

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Key Concepts

Anode

An anode is the electrode where oxidation reactions take place, meaning it is the site at which species lose electrons. It plays a key role in initiating and sustaining the flow of electrons through the system. Similar to the cathode, the polarity of an anode can differ based on the type of cell; however, its essential feature is that oxidation occurs at this electrode.

Cathode

In the context of electrochemistry, the cathode is the electrode at which reduction reactions occur; this means that it is the site where species gain electrons. Its role is central in determining the direction of electron flow during chemical reactions, and although its charge (positive or negative) can vary depending on the type of electrochemical cell (galvanic vs. electrolytic), its defining characteristic is the occurrence of reduction.

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